Heat-system controller



FIG. 1 is a front perspective view of the heat-system controller of thisinvention;

FIG. 2 is a front elevational view of the heat-system controller, theback of the heat-system controller being plain and disclaimed;

FIG. 3 is a top edge view of the heat-system controller;

FIG. 4 is a bottom edge view of the heat-system controller;

FIG. 5 is a right-side edge view of the heat-system controller, theleft-side edge view of the heat-system controller being a mirror imagebut lacking the edge view of the small buttons seen in FIG. 4;

FIG. 6 is a back perspective view of the heat-system controller mountedon a stand;

FIG. 7 is a perspective view of the large rotary knob of the heat-systemcontroller of FIGS. 1-5;

FIG. 8 is a front elevational view of the knob;

FIG. 9 is an edge view of the knob, with disclaimed attachment fingersshown in dashed lines; and,

FIG. 10 is a view of another heat-system controller according to theinvention that differs from that of FIGS. 1-5 in that the large rotaryknob is smooth.

CLAIM The ornamental design for a heat-system controller, as shown anddescribed.